English, asked by Anonymous, 17 days ago

The sides of a rectangle are 3a + b and 7a + 2b. Find its perimeter.

Answers

Answered by bhavyahjariwala

1

Answer:

L = 7a + 2b

B = 3a + b

Perimeter of rectangle = 2 ( l + b)

= 2 ( 7a + 2b + 3a + b)

= 2 ( 7a + 3a +2b + b)

= 2 ( 10a + 3b)

= 20a + 6b.

The perimeter of a rectangle is 20a + 6b.

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